equals() and hashCode() implementation need to change in StandardSocketFactory

Details

Description

In Hadoop IPC Client, we are using ClientCache which will maintain the HashMap to keep the Client references.
private Map<SocketFactory, Client> clients =
new HashMap<SocketFactory, Client>();

Now let us say, we want use two standard factories with Hadoop. MyStandardSocketFactory (which extends StandardSocketFactory), and StandardSocketFactory. In this case, because of equals and hashcode implementation, MyStandardSocketFactory client can be overridden by StandardSocketFactoryClient